<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table 
        :data="userlist.slice((queryInfo.pagenum-1)*queryInfo.pagesize, queryInfo.pagenum*queryInfo.pagesize)" 
        border stripe>
        <!-- ---:data="用于存放请求数据回来的数组" -->
        <el-table-column type="index"></el-table-column>
        <el-table-column label="用户名" prop="name"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <template slot-scope="scope">
            <!-- //--- 这里取到当前单元格 -->
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
            <!-- //--- scope.row 直接取到该单元格对象，就是数组里的元素对象，即是tableData[scope.$index] -->
          </template>
        </el-table-column>
        <el-table-column label="操作" width="200px">
          <template slot-scope="scope">
            <!-- //--- 这里取到当前单元格 -->
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.user_id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserById(scope.row.user_id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row.user_id)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!--  分页区域-->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="userlist.length"
      ></el-pagination>
    </el-card>
    <!-- 添加用户的对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
      <!-- 内容主体区域 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="name">
          <el-input v-model="addForm.name"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
        <el-form-item label="角色" prop="role_name">
          <el-input v-model="addForm.role_name"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户对话框 -->
    <el-dialog
      title="修改用户信息"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <!-- 修改用户对话框 -->
      <el-form :model="editForm" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.name" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!--  -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色对话框 -->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%"
    @close="setRoleDialogClosed">
      <div>
        <el-form :model="userInfo"  ref="rolelistRef" label-width="70px">
          <el-form-item label="用户名">
            <el-input v-model="userInfo.name" disabled></el-input>
          </el-form-item>
          <el-form-item label="角色" prop="role_name">
            <el-select v-model="selectedRole" placeholder="请分配相应角色">
              <el-option 
                v-for="item in rolelist"
                :key="item.role_name"
                :value="item.role_name">
              </el-option>
            </el-select>
          </el-form-item>
        </el-form>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    //验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb()
      }
      cb(new Error("请输入合法的邮箱"))
    }
    //验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/

      if (regMobile.test(value)) {
        return cb()
      }

      cb(new Error("请输入合法的手机号"))
    }

    return {
      //获取用户列表参数
      queryInfo: {
        query: "",
        pagenum: 1, //当前的页数
        pagesize: 5 //当前每页显示多少条
      },
      userlist: [{
        name: '',
        email: '',
        mobile: '',
        role_name: '',
        mg_state: ''
      }],
      total: '',
      //控制添加对话框的显示与隐藏
      addDialogVisible: false,
      //控制修改对话框的显示与隐藏
      editDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        name: "",
        password: "",
        email: "",
        mobile: "",
        role_name: ""
      },
      // 通过id获取用户数据
      editForm: {},

      //添加表单的验证规则对象
      addFormRules: {
        name: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "用户名的长度在3~10个字符之间",
            trigger: "blur"
          }
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "用户名的长度在6~15个字符之间",
            trigger: "blur"
          }
        ],
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" }
        ],
        mobile: [
          { required: true, message: "请输入手机", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" }
        ]
      },
      //修改表单的验证规则对象
      editFormRules: {
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" }
        ],
        mobile: [
          { required: true, message: "请输入手机", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" }
        ]
      },
      // 控制分配角色对话框的显示与隐藏
      setRoleDialogVisible: false,
      //需要被分配角色的用户信息
      userInfo: {},
      // 所有角色列表的信息
      rolelist: [],
      // 已选中的角色名字值
      selectedRole: ""
    }
  },
  created() {
    this.getUserList()
  },
  mounted: function() {
    // this.get_role()
  },
  methods: {
    async getUserList() {
      const res = await this.$http.post('/api/users_view', {msg:this.queryInfo.query})
      if (res.status !== 200) {
        return this.$message.error("获取用户名列表失败！")
      }
      this.userlist = res.data.userlist
    },
    //监听pagesize改变的事件
    handleSizeChange(newSize) {
      console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码值改变的事件
    handleCurrentChange(newPage) {
      console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    //监听switch开关状态的改变
    async userStateChanged(userinfo) {
      console.log(121212);
      console.log(userinfo)
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error("更新用户状态失败！")
      }
      this.$message.success("更新用户状态成功！")
    },
    //监听添加用户对话框关闭事件
    addDialogClosed() {
      // console.log(this.$refs.addFormRef)
      this.$refs.addFormRef.resetFields()
    },
    //点击按钮，添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        //可以发起添加用户的网络请求
        const res = await this.$http.post('/api/users_add', this.addForm)
        if (res.status !== 200) {
          return this.$message.error("添加用户失败！")
        }
        this.$message.success("添加用户成功！")
        // 重新获取用户列表数据
        this.getUserList()
        // 隐藏添加用户对话框
        this.addDialogVisible = false
      })
    },
    // 展示编辑用户的对话框
    async showEditDialog(index) {
      const res = await this.$http.post('/api/users_edit_open',{user_id:index})
      if (res.status !== 200) {
        return this.$message.error("查询用户信息失败！")
      }
      this.editForm = res.data[0]
      this.editDialogVisible = true
    },
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息，并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        //可以发起修改用户的网络请求
        const res = await this.$http.post('/api/users_edit',this.editForm)
        // console.log(1919);
        // console.log(res);
        if (res.status !== 200) {
          return this.$message.error("更新用户信息失败！")
        }
        this.getUserList()
        this.$message.success("更新用户信息成功！")
        // 隐藏更新用户信息对话框
        this.editDialogVisible = false        
      })
    },
    //根据id删除用户
    removeUserById(id) {
      this.$confirm("此操作将永久删除该用户, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning"
      })
        .then(async () => {
         const res =await this.$http.post('/api/users_drop',{user_id:id})
          if (res.status !== 200) {
            return this.$message.error("删除用户失败！")
          }
          this.$message({
            type: "success",
            message: "删除成功!"
          })
          // 重新获取用户列表数据
          this.getUserList()
        })
        .catch(() => {
          this.$message({
            type: "info",
            message: "已取消删除"
          })
        })
    },
    // 展示分配角色对话框
    async setRole(index) {
      this.setRoleDialogVisible = true
      const res = await this.$http.post('/api/users_give_open',{user_id:index})
      if (res.status !== 200) {
        return this.$message.error("获取角色列表失败！")
      }
      this.userInfo = res.data[0]
      //在展示对话框之前获取所有角色列表
      this.get_role()
    },
    // 获取所有角色
    get_role(){
      this.$http.get('/api/role_view').then(res=>{
        this.rolelist = res.data
      });
    },
    // 点击按钮分配角色
    async saveRoleInfo() {
      this.$refs.rolelistRef.validate(async valid => {
        if (!valid) return
        const res = await this.$http.post('/api/users_editrole',{user_id:this.userInfo.user_id,role_name:this.selectedRole})
        if (res.status !== 200) {
          return this.$message.error("更新角色失败！")
        }
         // 重新获取用户列表数据
          this.getUserList()
        this.$message.success("更新角色成功！")
        this.setRoleDialogVisible = false
      })
    },
    //监听分配角色对话框关闭
    setRoleDialogClosed(){
      this.selectedRole=''
      this.userIfo=''   
    }
  }
}
</script>

<style lang="less" scoped>
</style>